is a face sticking out a tongue. it's the mirror image of :p. it's used to avoid auto-smilies in forums/ims.
guy 1: your funny :p
guy 2: yes i am q:
guy 1: yeah q:
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A Quarter of one ounce, about seven grams.
Do you have any of that leb hash left? I could do with a q if possible.
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Means Question and Answer.
Someone asks question...and answer.
Guy 1: I got a Q&A. Where is teh cookiez?
Guy 2: Tey are in teh Freezer.
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Smiley expression for Facepalm.
Someone is very stupid, you do a facepalm -> >.q
(putting your hand on your face as expression of "how dump can a single person be..?")
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